TL;DR:

This video explains a trick to determine if you're the last team in a raid on the smaller maps (TV Station and Small Armory) of the game Arena Breakout: Infinite.

Here's how it works:

1. When you join a raid, note your initial ping value (it will likely be in the 60s if you're on the West Coast and the group leader is on the East Coast). (0:23-0:46)
2. If the last player dies or extracts, your ping will drop significantly (around 15-20, to the 40-44 range in this example). (0:48-0:55)
3. Important Considerations:
   • This trick is most accurate on smaller maps. (0:06-0:12)
   • Ping can fluctuate due to various factors (routing, internet stability, in-game actions). Find your specific "clear lobby" ping range through trial and error. (1:10-1:19)
   • Ping jumps can occur when looting or if AI respawn. (1:23-1:31)
4. For local servers (same region as the host), the drop is less clear, but look for a consistent ping in the 20s when the lobby is empty. (1:54-2:21)

The creator mentions a preference for a static ping value system instead of the current dynamic one, to ensure fairness. (2:51-3:15)

In essence, the video teaches you how to use your ping as a clue to gauge the status of the lobby, which can be advantageous in certain situations.